datasheet - PVA TePla AG

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COD Sinter HIP Furnaces COD COD Sinter HIP furnaces combine dewaxing, vacuum sintering and subsequent isostatic densification under pressure gas of hard metals (cemented carbides) or technical ceramics with treatment in fine vacuum, reactive gases and high pressure gas up to 100 bar. Application Dewaxing • of green bodies manufactured with methods like form pressing, extruding or PIM-technique • with partial pressure (Ar, N 2 , H 2 ) • with flowing H 2 burn off system • with pressure control and monitoring of binder evaporation • for all conventional binders: conventional paraffines, PEG, micro wax, methyl cellulose etc. Sintering • under vacuum or Hydrogen • reactive gases (stationary/flowing) • with pressure control • with shift in gas direction Characteristics Treatment with pressure gas • for isostatic compaction with inert gas at sinter temperature • high pressure rapid cooling from sinter temperature with cooling fan Material application • Hard metals • PM-special alloys • Technical ceramics COD furnace vessels are double-walled for water cooling, made of fine grain steel, in horizontal or vertical design. The heating insert is made of graphite. Due to separate controlled heating zones, gas pre-heating, most efficient design of thermal insulation and an extremly accurate measuring and control system an optimum temperature homogeneity can be achieved in the useable space. The special design of the thermal insulation results in a considerably extended life time and reduced heat losses compared to conventional designs. A micro processor controlled programm sequence ensures a fully automatic and reproducible process and a uniform product quality. PC-operating and related data handling comply with the demand to a responsible quality assurance. Sinter HIP furnaces type COD consist of the following subassemblies: Furnace vessel, current feedthroughs, heating insert, temperature measurement, cooling water device, vacuum system, el. power and control, dewaxing system and gas treatment. The basic equipment can be extend with considerably additions, like recooling water closed loop system and charge loading systems.
Benefits for users • High efficiency caused by the design of low-loss thermal insulation system and functional construction of the furnace • High product quality due to excellent temperature homogeneity in vacuum, during pressure gas rise and sintering • Well elaborated technical safety philosophy for the reliable and full automatic furnace operation • Best dewaxing and cooling times • Quick availability of the furnace caused by fully pre-tested and pre-adjusted furnace in the works of manufacturer incl. hot pressure cycle and authority acceptance • Reliability, long life time, operator-convenience and utmost high efficiency Design versions (examples): Special features • COD furnaces with 60 bar or 100 bar operating pressure with Argon • Max. operating temperature 1,600 °C (2,100 °C for ceramics) • Usable volume: 4.5 l to 825 l • Max. usable length: 3000 mm (118”) • Design in subject to the usable length with 2 - 6 heating zones • Many special features available like a side-to-side gas flow system • Temperature homogeneity in the usable space is ±7 K • Final vacuum: 5 x10 -2 mbar • Automatic control of the entire process including pressure gas operation • Operating via PC including data logging and data storage Furnace type: COD 733 RL COD 733 RL Operating pressure: 60 100 bar Usable space (WxHxL): 500x550x3000 500x475x3000 mm Usable volume: 825 712 l Charge load: 2,500 2,500 kg Power rating: 700 760 kVA HP gas consumption (Ar): 121 207 kg Furnace type: COD 733 R COD 733 R Operating pressure: 60 100 bar Usable space (WxHxL): 500x550x1600 500x475x1600 mm Usable volume: 440 380 l Charge load: 1,500 1,500 kg Power rating: 465 525 kVA HP gas consumption (Ar): 83 143 kg Furnace type: COD 633 R COD 633 R Operating pressure: 60 100 bar Usable space (WxHxL): 500x550x1000 500x475x1000 mm Usable volume: 275 240 l Charge load: 1,000 1,000 kg Power rating: 335 415 kVA HP gas consumption (Ar): 67 115 kg Furnace type: COD 533 R COD 533 R Operating pressure: 60 100 bar Usable space (WxHxL): 300x300x900 300x260x900 mm Usable volume: 80 70 l Charge load: 300 300 kg Power rating: 190 210 kVA HP gas consumption (Ar): 31 54 kg Furnace type: COD 033 R Operating pressure: 100 bar Usable space (WxHxL): 150x100x300 mm Usable volume: 4,5 l Charge load: 30 kg Power rating: 50 kVA HP gas consumption (Ar): 12 kg
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datasheet - PVA TePla AG

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